I'll speak in favor of the ERJ. Haven't flown the CRJ so I can't really compare, but the Jungle Jet was a blast to fly. No, the ERJ isn't just a stretch Brasilia with fancey push buttons instead of switches. It's way more computerized and automated than the emb-120. Some common complaints from the average line pilot was crappy wx radar, and it's inability to climb with any rate of speed (though CRJ pilots bitch about that too).